Abstract
Orthodontics is the branch of dentistry which deals with misalignment of teeth and facial skeleton. The mechanics of fixed appliance therapy completely relies on retention of orthodontic appliance. Following the attainment of new positions of misaligned teeth after fixed orthodontic appliance therapy they need sustainment of new position mechanically so that supporting structures and bone attains concrete position and maturity. Retention is the period of Orthodontic treatment that keeps teeth in new position after treatment with orthodontic treatment. Without period of retention, there is a propensity for teeth to new position for their underlying position causing relapse. Hence it is very necessary to prevent relapse which depends on many factors. Every orthodontic patient must wear retention appliances to prevent relapse. This review article discusses the protocol of retention, need and requirements, indications, types and various factors affecting it.